SEA95LA008

NTSB accident investigation · Cessna R172K · St. George, UT · October 10, 1994

Accident · Minor injuriesLimited investigationFinal report
Date
October 9, 1994, 20:30 local (Oct 10, 1994, 02:30 UTC)
Place
St. George, UT
Injuries
4 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N7327KCessna R172K
Weather
Visual (VMC) · Dusk
Status
Completed · report June 29, 1995
Report
Approved by Office Director
Case key
42080

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

Inadequate fuel consumption calculations. Factors to the accident were: fuel exhaustion and a parked aircraft in the landing path.

Analysis

The pilot reported 'half tanks' before departing for his destination at 1740 hours. While in the traffic pattern for landing at the destination, the engine sputtered and lost power. The pilot turned the airplane toward the runway and the engine resumed power for a short time before losing all power. The pilot was unable to make the runway and landed on the parking ramp. During the landing roll, the airplane collided with a parked aircraft. The accident occurred approximately 2 hours and 50 minutes after takeoff. A small amount of fuel was found in both wing fuel tanks. Several days after the accident the engine was started and found to run with no noted abnormalities.

Factual narrative

On October 9, 1994, approximately 2030 hours mountain daylight time (mdt), a Cessna R172K, N7327K, registered to Rex & Dena Sylvester, and being operated/flown by Nathan K. Hoyt, a private pilot, collided with a parked Beech Baron on the ramp at the St. George Municipal Airport, St. George, Utah, while on landing roll out. The Cessna sustained substantial damage during the forced landing and ground collision following a total loss of power approaching the airport. The pilot and three passengers received minor injuries. The flight, which was personal in nature, was to have been operated under 14CFR91, and originated from the Logan-Cache Airport approximately 1740.

The pilot reported that after approximately 2.6 hours of flight time from St. George to Logan on October 8th, he purchased 10 gallons of fuel. He reported that the fuel gauges were displaying half full quantity readings and that the tanks looked half full prior to departing Logan. During a telephone interview, the pilot stated that the fuel gauges read one quarter when approaching the St. George Airport. Two other planes were in the pattern and the pilot extended the downwind leg. While in the pattern, the pilot stated that the engine sputtered, then quit. The pilot turned toward the runway and the engine resumed power for a short time, allowing the airplane to climb. The engine then quit again and the pilot set up for an emergency forced landing on the transient parking ramp. During the landing roll, the airplane collided with a parked Beech Baron.

The St. George Fire Chief reported that there was no evidence of fuel leakage at the accident site following the crash. Airport personnel reported that the left wing contained "at best" unusable fuel. The right wing contained possibly a small amount of fuel.

A Federal Aviation Administration Inspector from the Salt Lake City, Utah, Flight Standards District Office, reported that he viewed the airplane several days after the accident. The Inspector stated that the left wing fuel tank contained approximately one inch of fuel. The right wing was found to contain approximately four gallons of fuel. The engine was then started and found to run with no noted abnormalities.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(total) - nonmechanicalApproach - vfr pattern - base leg/base to final
Fluid,fuel - exhaustionFactor
Fuel consumption calculations - inadequatePilot in commandCause
Forced landingEmergency landing
On ground/water collision with objectLanding - roll
Object - aircraft parked/standingFactor

Aircraft

Registration
N7327K
Reported as
Cessna R172K
Category
Airplane
Serial number
R1722057
Airframe hours
3,113
Engine
Continental IO-360K, 195 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Hoyt, Nathan K.
Registered owner
Rex & Dena Sylvester
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 13, 1994
Departed
LGU · Logan, UT
Destination
SGU
Airport
SGU · St. George

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
20
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
320 total · 40 in this make and model · 230 as pilot in command · 120 in the last 90 days · 50 in the last 30 days

Weather

Conditions
Visual (VMC) · Dusk
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 25 °F
Altimeter
30.00 inHg
Observed at
SGU